Okinawa needlewood tree

Schima wallichii ssp.  Japanese name: イジュChinese name: 西南木荷、紅木荷English name: Okinawa needlewood treeOrigin: This species is widely distributed in Southeast Asia. In Japan, it is found in the Ryukyu Islands and the Ogasawara Islands. Schima wallichii is distributed mainly in the Ogasawara and Ryukyu Islands in Japan. The populations in these two regions differ slightly in appearance,… Continue reading Okinawa needlewood tree

Halcyon Giant Centipede

Scolopendra alcyona Japanese name: リュウジンオオムカデChinese name: 琉神蜈蚣、青龍蜈蚣(TW)English name: Halcyon Giant CentipedeOrigin: Northern Okinawajima, Ishigakijima, Iriomotejima, Kumejima, Tokashikijima, Taiwan This species was described as new in April 2021 ( Reference ), and it is the third known amphibious centipede species in the world. It inhabits stream environments and is known to dive into the water when… Continue reading Halcyon Giant Centipede

Kumejima Geothelphusa Freshwater Crab

久米澤蟹

Geothelphusa kumejima Japanese name: クメジマオオサワガニChinese name: 久米澤蟹English name: Kumejima Geothelphusa Freshwater CrabOrigin: Kumejima Geothelphusa kumejima is a freshwater crab endemic to Kumejima. Its body color often shows a purplish tint.

Ryukyu black-breasted leaf turtle

琉球山龜

Geoemyda japonica Japanese name: リュウキュウヤマガメChinese name: 琉球黑胸葉龜English name: Ryukyu black-breasted leaf turtleOrigin: Northern Okinawajima, Kumejima, Tokashikijima The Ryukyu black-breasted leaf turtle is closely related to the turtle species Geoemyda spengleri, which is distributed in China and Vietnam. It was once considered a subspecies of G. spengleri but was recognized as a distinct species in 1992.… Continue reading Ryukyu black-breasted leaf turtle

Okinawa Tree Frog

沖繩綠樹蛙

Zhangixalus viridis Japanese name: オキナワアオガエルChinese name: 沖繩樹蛙English name: Okinawa Tree FrogOrigin: Okinawajima, Iheyajima, Kumejima From November to May, the breeding calls of the Okinawa Tree Frog can often be heard in the Yambaru areas. Males have yellow bellies, while females have white bellies and are significantly larger in size, making it relatively easy to distinguish… Continue reading Okinawa Tree Frog

Kumejima Candidiopotamon Freshwater Crab

Candidiopotamon kumejimense Japanese name: クメジマミナミサワガニChinese name: 久米明溪蟹English name: Kumejima Candidiopotamon Freshwater CrabOrigin: Kumejima (endemic) This species is endemic to Kumejima. Compared to Geothelphusa kumejima, it has coarse wrinkles and protuberances on the surface of its carapace, making it easy to distinguish by appearance. The genus Candidiopotamon is distributed only in Taiwan and some of the… Continue reading Kumejima Candidiopotamon Freshwater Crab

Ryukyu Brown Frog

琉球赤蛙

Rana ulma Japanese Name: リュウキュウアカガエルChinese Name: 琉球赤蛙、沖繩林蛙English Name: Ryukyu Brown FrogOrigin: Okinawajima, Kumejima Brown frog populations from Tokunoshima, Amamioshima, Okinawajima, and Kumejima were once all classified as same species. However, recent studies revealed that although frogs from Okinawajima and Kumejima resemble those from Tokunoshima and Amamioshima in appearance, their vocalizations are noticeably different. As a… Continue reading Ryukyu Brown Frog

White-lipped Tree Frog

Polypedates leucomystax Japanese Name: シロアゴガエルChinese Name: 白頷樹蛙English Name: White-lipped Tree FrogOrigin: Widely distributed in Southeast Asia, from northeastern India to the Philippines Reference: National Institute for Environmental Studies, Invasive Species Databasehttps://www.nies.go.jp/biodiversity/invasive/DB/detail/40030.html This species has been confirmed on many islands of the Okinawa Islands, as well as Kitadaitojima, the Sakishima Islands (including Miyakojima and Ishigakijima), and… Continue reading White-lipped Tree Frog

Brown Land Crab

Cardisoma carnifex Japanese Name: ミナミオカガニChinese Name: 凶狠圓軸蟹English Name: Brown Land CrabOrigin: Coastal regions of Southeast Asia bordering the Pacific and Indian Oceans; in Japan, found on islands south of Yoronjima in the Ryukyu Islands. The Brown Land Crab is one of the terrestrial crabs found in the Ryukyu Islands. In recent years, its population has… Continue reading Brown Land Crab

Ryukyu Stream Cricket

Vescelia pieli ryukyuensis Japanese Name: リュウキュウサワマツムシChinese Name: 琉球擬亮蟋、比爾擬亮蟋琉球亞種、皮爾氏亮蟋琉球亞種English Name: Ryukyu Stream CricketOrigin: Amamioshima, Tokunoshima, Okinawajima, Kumejima, Ishigakijima, Iriomotejima In streamside environments of Okinawajima and other islands, the clear and high-pitched calls of the Ryukyu Stream Cricket can often be heard. These sounds are courtship calls produced by males rubbing their forewings together. Although their calls… Continue reading Ryukyu Stream Cricket